# How do you multiply  (2a - b)3?

Apr 9, 2018

$\left(2 a - b\right) 3 = 6 a - 3 b$
The distributive property states that $a \left(b + c\right) = a b + a c$.
$\left(2 a - b\right) 3$
$= 3 \cdot 2 a - 3 b$
$= 6 a - 3 b$